Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10739223 | Hydrostatic pressure test method and apparatus | Clifford Lee Hilpert, Lewis J. Dutel, Laura Tufts Meyer | 2020-08-11 |
| 10655737 | Dual seat valve | Clifford Lee Hilpert | 2020-05-19 |
| 10605692 | Automated bop control and test system | Clifford Lee Hilpert | 2020-03-31 |